Arlington CDP, Massachusetts Demographics & Population 2026

Population Overview

Arlington CDP is a mid-sized community located in Massachusetts. The total population is 46,015. It ranks as the 29th most populous out of 248 cities and towns in Massachusetts.

Age Demographics

The median age in Arlington CDP is 41.3 years. This is 3% higher than the state median of 40.0 years.

Economy, Income & Housing

The median household income in Arlington CDP is $141,440. This is 40% higher than the state median of $101,341. Compared to the national median of $78,538, household income here is 80% higher. The poverty rate stands at 5.4%. This is 46% lower than the state poverty rate of 10.0%. The unemployment rate is 3.2%. This is 38% lower than the state rate of 5.1%. The median home value is $885,000. Housing costs are 68% higher than the state median of $525,800. The home-value-to-income ratio of 6.3x suggests that housing affordability is a significant concern for many residents. 60.6% of occupied housing units are owner-occupied. This homeownership rate is 3% lower than the state average of 62.6%.

Race & Ethnicity

The largest racial or ethnic group in Arlington CDP is White (non-Hispanic), making up 75.2% of the population. Asian residents account for 12.1%. The Black or African American population (2.5%) is well below the state average of 6.5%. The Hispanic or Latino population (5.0%) is well below the state average of 12.9%. The Asian population is significantly higher than the state average (12.1% vs 7.0%).

Education

74.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Arlington CDP in the top 10% of all cities in the state for educational attainment. This is 60% higher than the state rate of 46.6%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.6%. Notably, 43.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Arlington CDP, Massachusetts is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Massachusetts state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 248 Census-designated places in Massachusetts. For official data, visit data.census.gov.